Rihanna treats her fans to pictures of her private moments during a vacation with her closest girlfriends.

It's very rare that celebrities expose a bit of their personal space but the pop star hailed by Esquire as "The Sexiest Woman Alive" was more than willing to do so.

On her Facebook page, Rihanna posted selected photos from her private vacation with a few of her close friends. From the pictures of the singer while on a yacht and from the smiles on everyone's faces including Riri, it looked like it was a fun-filled get together. Shots of her and her friends were also posted while they tour Italy.

Rihanna was seen posing in different sets of bikinis and sans makeup, looking radiant and natural. Earlier this week the singer had to cancel a concert in Sweden after she was hospitalized due to a bad case of flu.

The singer is now feeling well and on concert tour in Germany before she heads back again to UK following the rest of Europe, Italy, Spain, Portugal, Switzerland, Poland, and Hungary.

The singer will take a break in 2012 but will be back in UK in the next summer. She was advised by her doctors to take some rest and cut back from clubbing and drinking.

"She doesn't have any down time where she can completely relax. She spends most of her time in the studio, on stage or in clubs. Doctors are worried she's overdoing it. She needs to take some time off. Otherwise she'll be vulnerable to more illness," a source told The Sun.

From the looks of the pictures she posted, looks like the star had a lot of fun and relaxation from her well-deserved vacation.

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